Reine - I don't think it is the same for the people who transition "once it's convenient". Honestly, amongst the people I know (and this is across all age groups), you can usually tell because the women are just women, and whatever the other ones are, they're the folks trying to act like "women".
I know people like to say that "it's hard to learn how to be a woman, especially when you're old". My personal belief is that, outside of purely practical skills like makeup application (which not every cis woman knows), if you have to learn how to be a woman, that's telling in some ways...
